Here, we investigate the role of a dilute hydrophobic gas on the phase behavior of water confined in hydrophobic nanopores. Molecular dynamics showed that gas atoms are hydrophobically attracted within the pores, where even a single particle is able to induce spontaneous drying of the whole pore. The drying process is rationalized in terms of its free-energy landscape, revealing that the penetration of a gas atom is able to suppress the drying free-energy barriers of hydrophobic pores. Results provide insights into the role of gases on the wettability of nanopores and evidence of a possibile physical mechanism for the action of volatile anesthetics on some kinds of ion channels. Results also indicate a novel, bioinspired strategy for controlling bubble formation in nanopores for sensing and energy applications.
Camisasca, G., Tinti, A., & Giacomello, A. (2020). Gas-Induced Drying of Nanopores. THE JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 11(21), 9171-9177.
|Titolo:||Gas-Induced Drying of Nanopores|
|Data di pubblicazione:||2020|
|Citazione:||Camisasca, G., Tinti, A., & Giacomello, A. (2020). Gas-Induced Drying of Nanopores. THE JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 11(21), 9171-9177.|
|Appare nelle tipologie:||1.1 Articolo in rivista|